Re: RP2350 and Pico 2 - things missing

On 29/08/2024 19:13, Ahem A Rivet's Shot wrote:

On Thu, 29 Aug 2024 18:57:57 +0100
John Aldridge <jpsa@cantab.net> wrote:
 

In article <20240829102839.5bb67af25e568ebabc65ede6@eircom.net>,
steveo@eircom.net says...

>
On Thu, 29 Aug 2024 09:32:49 +0100
Richard Kettlewell <invalid@invalid.invalid> wrote:
>

I don?t think I?d fault either decision though the fact that we?ve
ended up with two conventions does make writing/maintaining portable
code a bit more annoying,

>
Portable code should only rely on the standards not
implementations, some very weird possibilities are legal within the
standard.

>
Heh, yes. I worked for several years on a machine where a null pointer
wasn't all bits zero, and where char* was a different size to any other
pointer.

  That rings vague bells, what was it ?
 

24 bit pointers were I think quite common, but isn't the 'null pointer' *defined* to be
(Char *)0 ?
Otherwise how could you test for it?
--
Canada is all right really, though not for the whole weekend.
"Saki"